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import time
# define a factorial function in recursive flavor
def factorial_recursive(number):
result = 1
if n > 0:
result = n * factorial_recursive(number-1)
print "factorizing: ", number, " result: ", result
return result
# define a factorial function in iterative flavor
def factorial_iterative(number):
result = 1
for i in range(1, number+1):
result = result * i
print "factorizing: ", i, " result: ", result
return result
def calculate(number, type):
start = time.time()
if type == 0:
type_s = "recursive"
result = factorial_recursive(number)
else:
type_s = "iterative"
result = factorial_iterative(number)
delta = time.time() - start
print "Type: ", type_s, " in: ", 1/delta
# ask for a number to factorize
number = input("Please input a number:")
print "Calculating..."
calculate(number, 0)
calculate(number, 1)
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